Sometimes it pays to wait a few days before installing a fairly hefty firmware update…

Per the Apple Core, a number of users have reported issues with the MacBook Air and MacBook Pro Update 2.0, which was recently offered for 2012 models. Worse, late last week, Apple pulled the support page about the update as well as the download link, indicating a recall on the software.

Some users report issues with video memory as well as with Keychain operation, while on the VMware Fusion Blog, a post warned that the update may cause virtual machines to stop working when a 3D application is run.

Users who have already applied this update and are affected by this issue can work-around it by disabling the “Accelerate 3D Graphics” option under Virtual Machine > Settings > Display.

In other news, Apple this week released a new update for Mountain Lion, OS X Mountain Lion 10.8.2 Supplemental Update 2.0, which may address some of the Keychain issues separately.

This update is recommended for all Mac systems introduced in 2012 and, fortunately, the issue appears to be a problem with Mountain Lion and not the hardware on the notebooks themselves.

Stay tuned for additional details as they become available and if you’ve seen issues with your MacBook Air or MacBook Pro and the firmware update, please let us know in the comments.

Thanks for the heads up. I had not updated my Air for some time – and I’m glad I didn’t! Right now it is just showing the Mountain Lion 10.8.2 update so I guess I safe to go ahead and apply that one – but I might wait just a little longer – in case.